EP 0946319 A1 19991006 - APPARATUS FOR THE INJECTION MOLDING OF A METAL ALLOY: SUB-RING CONCEPT
Title (en)
APPARATUS FOR THE INJECTION MOLDING OF A METAL ALLOY: SUB-RING CONCEPT
Title (de)
VORRICHTUNG FÜR DAS SPRITZGIESSEN VON METALL-LEGIERUNGEN: KONZEPT DER UNTERSEGMENTE
Title (fr)
APPAREIL DE MOULAGE PAR INJECTION D'UN ALLIAGE METALLIQUE: CONCEPT DE SOUS-SEGMENT
Publication
Application
Priority
- US 9713434 W 19970730
- US 73552696 A 19961023
Abstract (en)
[origin: US5680894A] The present invention reveals an improvement in an apparatus for injection molding a metallic material having dendritic properties. In the improvement, a sub-ring is placed under a piston ring on a sliding seal ring of a non-return valve assembly. The sub-ring seals the pressure and metal flow in the apparatus, virtually eliminates piston ring leakage and extends the usable life of the non-return valve assembly.
IPC 1-7
IPC 8 full level
B22D 17/20 (2006.01); B22D 17/00 (2006.01); B29C 45/52 (2006.01)
CPC (source: EP US)
B22D 17/007 (2013.01 - EP US); B22D 17/2061 (2013.01 - EP US); Y10S 164/90 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI LU NL SE
DOCDB simple family (publication)
US 5680894 A 19971028; AT E218080 T1 20020615; AU 3743197 A 19980515; CA 2269676 A1 19980430; CA 2269676 C 20070605; DE 69712913 D1 20020704; DE 69712913 T2 20030123; EP 0946319 A1 19991006; EP 0946319 A4 19991006; EP 0946319 B1 20020529; HK 1020026 A1 20000310; JP 2002514136 A 20020514; WO 9817419 A1 19980430
DOCDB simple family (application)
US 73552696 A 19961023; AT 97934352 T 19970730; AU 3743197 A 19970730; CA 2269676 A 19970730; DE 69712913 T 19970730; EP 97934352 A 19970730; HK 99104910 A 19991101; JP 51933698 A 19970730; US 9713434 W 19970730